Transaction not yet indexed

53SfK6heig6yyHE2Cx2MsDenq5kD7hFtCwfXPZP9Q8r9kTfmTbSubzfDHWBzhnAitFH6MYo53gCSb9mpYwb3NXF1

The transaction signature is valid but not yet indexed by this RPC node, or the transaction failed before inclusion.